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51

Dielectric Measurements on SBN:Ce

N. Wittler, G. Greten, S. Kapphan, R. Pankrath, J. Seglins

Journal:

physica status solidi (b)

Year:

1995

Language:

english

File:

PDF, 212 KB

english, 1995

52

Ferroelectric phase transition induced by charge transfer vibronic excitons in ferroelectric oxides

Valentin S. Vikhnin, Siegmar E. Kapphan, Rasa M. Pirc, Alexander S. Sigov

Journal:

physica status solidi (c)

Year:

2004

Language:

english

File:

PDF, 246 KB

english, 2004

53

Oxygen-related intrinsic defects and charge transfer vibronic excitons localized on a such type defects: optical manifestation of long term and metastable states in pure KTaO3 crystals

Valentin S. Vikhnin, Airat Gubaev, Siegmar E. Kapphan

Journal:

physica status solidi (c)

Year:

2004

Language:

english

File:

PDF, 129 KB

english, 2004

54

X-ray and pulsed electron beam excited luminescence and optical absorption in KTaO3 crystals

D. Millers, L. Grigorjeva, V. Trepakov, S.E. Kapphan, L.A. Boatner

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 124 KB

english, 2005

55

Divalent impurity ion defects in potassium tantalate: EPR investigations

A. G. Badalyan, V. A. Trepakov, C. B. Azzoni, P. Galinetto, M. C. Mozzati, L. Jastrabik, J. Rosa, S. E. Kapphan, M. Hrabovsky

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 205 KB

english, 2005

56

Charge transfer vibronic excitons

Valentin S. Vikhnin, Siegmar E. Kapphan, Roberts I. Eglitis, Rasa M. Pirc

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 96 KB

english, 2005

57

Kinetics of light-induced polaron- and VIS-centers in SBN:Ce single crystals at low temperature

A. Gubaev, S. Kapphan, I. Kislova, A. Kutsenko, R. Pankrath, V. Vikhnin

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 142 KB

english, 2005

58

UV light-induced absorption in pure KTaO3 at low temperature

S.E. Kapphan, A.I. Gubaev, V.S. Vikhnin

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 156 KB

english, 2005

59

Low temperature structural transformations of dilute KTa1–xNbxO3: x = 0.018, quantum superparaelectric or reentrant glass scenario?

V. A. Trepakov, M. E. Savinov, S. A. Prosandeev, S. E. Kapphan, L. Jastrabik, L. A. Boatner

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 115 KB

english, 2005

60

Photoinduced charge transport in KTaO3:Be

P. Galinetto, F. Rossella, E. Giulotto, G. Samoggia, V. Trepakov, L. Jastrabik, P. Syrnkov, S. Kapphan

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 101 KB

english, 2005

61

Energy migration and energy transfer processes in RE3+ doped nanocrystalline yttrium oxide

A.B. Kutsenko, J. Heber, S.E. Kapphan, R. Demirbilek, R.I. Zakharchenya

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 1.45 MB

english, 2005

62

Investigation of two-center holographic recording in SBN:Ce:Cr and SBN:Mn:Fe

R. Demirbilek, S. E. Kapphan, A. B. Kutsenko, R. Pankrath

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 355 KB

english, 2005

63

Polarons and charge-transfer vibronic excitons in ferroelectric oxides: EPR and photoluminescence studies of PbxNbyOzceramics

V. S. Vikhnin, R. I. Zakharchenya, H. R. Asatryan, A. B. Kutsenko, S. E. Kapphan

Journal:

Applied Magnetic Resonance

Year:

2005

Language:

english

File:

PDF, 787 KB

english, 2005

64

Light-induced charge transfer and kinetics of the NIR absorption of Nb4+ polarons in SBN crystals at low temperatures

M. Gao, R. Pankrath, S. Kapphan, V. Vikhnin

Journal:

Applied Physics B: Lasers and Optics

Year:

1999

Language:

english

File:

PDF, 246 KB

english, 1999

65

Optical characterization of Cr3+ centers in LiNbO3

S.A. Basun, A.A. Kaplyanskii, A.B. Kutsenko, V. Dierolf, T. Troester, S.E. Kapphan, K. Polgar

Journal:

Applied Physics B: Lasers and Optics

Year:

2001

Language:

english

File:

PDF, 411 KB

english, 2001

66

Infrared absorption study of the OH vibrational band in LiNbO3 crystals

L. Kovács, M. Wohlecke, A. Jovanović, K. Polgár, S. Kapphan

Journal:

Journal of Physics and Chemistry of Solids

Year:

1991

Language:

english

File:

PDF, 777 KB

english, 1991

67

Experimental study of second harmonic generation by dipolar configurations in pure and Li-doped KTaO3 and its variation under electric field

P. Voigt, S. Kapphan

Journal:

Journal of Physics and Chemistry of Solids

Year:

1994

Language:

english

File:

PDF, 1.54 MB

english, 1994

68

Phase-matched second harmonic generation in potassium malate

L. Schüler, K. Betzler, H. Hesse, S. Kapphan

Journal:

Optics Communications

Year:

1982

Language:

english

File:

PDF, 302 KB

english, 1982

69

Temperature dependence of the electric dipole moment of paraelectric Ag+ and OH- centers in rubidium halide crystals

W. Lohrie, J. Koppitz, S. Kapphan

Journal:

Solid State Communications

Year:

1986

Language:

english

File:

PDF, 491 KB

english, 1986

70

Low-temperature phase transformations in weakly doped quantum paraelectrics: novel features and quantum reentrant dipolar glass state in KTa0.982Nb0.018O3

V.A. Trepakov, S.A. Prosandeev, M.E. Savinov, P. Galinetto, G. Samoggia, S.E. Kapphan, L. Jastrabik, L.A. Boatner

Journal:

Journal of Physics and Chemistry of Solids

Year:

2004

Language:

english

File:

PDF, 354 KB

english, 2004

71

Observation of superhyperfine structure in the ESR spectra of two tetragonal Fe centers in KTaO3and a new model for the center

V. É. Bursian, V. S. Vikhnin, L. S. Sochava, S. Kapphan, H. Hesse

Journal:

Physics of the Solid State

Year:

1997

Language:

english

File:

PDF, 123 KB

english, 1997

72

Vibronic charge-transfer excitons: Possible nature of the unusual properties of virtual perovskitelike ferroelectrics

V. S. Vikhnin, S. Kapphan

Journal:

Physics of the Solid State

Year:

1998

Language:

english

File:

PDF, 53 KB

english, 1998

73

EPR of a non-Kramers iron ion in KTaO3

D. V. Azamat, S. A. Basun, V. É. Bursian, A. G. Razdobarin, L. S. Sochava, H. Hesse, S. Kapphan

Journal:

Physics of the Solid State

Year:

1999

Language:

english

File:

PDF, 70 KB

english, 1999

74

Dominant Cr3+centers in LiNbO3under hydrostatic pressure

S. A. Basun, A. A. Kaplyanskii, A. B. Kutsenko, V. Dierolf, T. Tröster, S. E. Kapphan, K. Polgar

Journal:

Physics of the Solid State

Year:

2001

Language:

english

File:

PDF, 128 KB

english, 2001

75

Magnetic resonance in PbxNbyOzceramics as a system containing chemical fluctuation regions

V. S. Vikhnin, H. R. Asatryan, R. I. Zakharchenya, A. B. Kutsenko, S. E. Kapphan

Journal:

Physics of the Solid State

Year:

2005

Language:

english

File:

PDF, 109 KB

english, 2005

76

Low-symmetry paramagnetic center in a KTaO3: Ni crystal

L. S. Sochava, S. A. Basun, V. É. Bursian, V. S. Vikhnin, A. G. Razdobarin, D. R. Evans, S. E. Kapphan

Journal:

Physics of the Solid State

Year:

2007

Language:

english

File:

PDF, 232 KB

english, 2007

77

Study of absorption spectra of Er3+in KTaO3crystals

A. P. Skvortsov, V. A. Trepakov, S. Kapphan, A. Dejneka, L. Jastrabik

Journal:

Physics of the Solid State

Year:

2009

Language:

english

File:

PDF, 122 KB

english, 2009

78

Multiplicity of europium centers in doped stoichiometric crystals of lithium niobate

A. A. Kaplyanskiĭ, S. Kapphan, A. B. Kutsenko, K. Polgar, A. P. Skvortsov

Journal:

Technical Physics Letters

Year:

2007

Language:

english

File:

PDF, 215 KB

english, 2007

79

Optical absorption spectra and energy levels of Er3+ions in KTaO3crystals

A. P. Skvortsov, V. A. Trepakov, V. V. Krivolapchuk, N. K. Poletaev, S. Kapphan, A. Dejneka, L. Jastrabik

Journal:

Technical Physics Letters

Year:

2009

Language:

english

File:

PDF, 126 KB

english, 2009

80

Fundamental and Overtone Spectra of the OH and OD Stretch Mode in Congruent and Stoichiometric LiTaO3

M. Wierschem, C. Bäumer, A. Jovanović, M. Wöhlecke, S. Kapphan, L. Kovács

Journal:

physica status solidi (b)

Year:

1999

Language:

english

File:

PDF, 104 KB

english, 1999

81

Infrared absorption of O−H in thin films of hydrogenated Bi2Sr2CaCu2O8

S. Kapphan, A. Jovanovic, A. Breitkopf, X. Z. Wang, W. Ludorf, D. Bäuerle

Journal:

Zeitschrift für Physik B Condensed Matter

Year:

1990

Language:

english

File:

PDF, 443 KB

english, 1990

82

Pulsed electron beam excited transient absorption in SrTiO3

D. Millers, L. Grigorjeva, V. Pankratov, V.A. Trepakov, S.E. Kapphan

Journal:

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Year:

2002

Language:

english

File:

PDF, 191 KB

english, 2002

83

Photochromism and polaronic photocharge localization in diluted KTa1-xNbxO3

Gubaev, A. I., Kapphan, S. E., Jastrabik, L., Trepakov, V. A., Syrnikov, P. P.

Journal:

Journal of Applied Physics

Year:

2006

Language:

english

File:

PDF, 457 KB

english, 2006

84

Semi-empirical calculations of the electronic and atomic structure of polarons and excitons in ABO3 perovskite crystals

R.I. Eglitis, E.A. Kotomin, G. Borstel, S.E. Kapphan, V.S. Vikhnin

Journal:

Computational Materials Science

Year:

2003

Language:

english

File:

PDF, 169 KB

english, 2003

85

Polar configurations in pure and Li-doped KTaO 3 studied by second harmonic generation and its variation under electric field

Voigt, P., Kapphan, S.

Journal:

Year:

1994

Language:

english

File:

PDF, 444 KB

english, 1994

86

Percolation with constraints in the highly polarizable oxide KTaO3:Li

S.A. Prosandeev, V.S. Vikhnin, S. Kapphan

Journal:

The European Physical Journal B / Condensed Matter and Complex Systems

Year:

2000

Language:

english

File:

PDF, 135 KB

english, 2000

87

NIR absorption of Nb 4+ polarons in reduced SBN crystals

Gao, Ming, Kapphan, S., Pankrath, R., Zhao, Jianlin

Journal:

Year:

2000

Language:

english

File:

PDF, 310 KB

english, 2000

88

Uv-excited luminescence of LiNbO 3 and LiNbO 3 :Mg

Klose, F., Wöhlecke, M., Kapphan, S.

Journal:

Year:

1989

Language:

english

File:

PDF, 350 KB

english, 1989

89

Vibration + libration absorption bands of OH centres in LiNbO 3

Gröne, A., Kapphan, S.

Journal:

Radiation Effects and Defects in Solids

Year:

1995

Language:

english

File:

PDF, 269 KB

english, 1995

90

Nature of uncommon nuclear spin relaxation in NaCl with high concentration of reorienting OH-impurities at low temperatures

Kanert, O., Backens, M., Fricke, M., Kapphan, S., Küchler, R., Vikhnin, V. S.

Journal:

Radiation Effects and Defects in Solids

Year:

1995

Language:

english

File:

PDF, 197 KB

english, 1995

91

Combination bands of libration+vibration of OH/OD centres in ABO 3 crystals

Grone, A, Kapphan, S

Journal:

Journal of Physics Condensed Matter

Year:

1995

Language:

english

File:

PDF, 506 KB

english, 1995

92

Influence of H-D isotopic substitution on the protonic conductivity of

Klauer, S., Wöhlecke, M., Kapphan, S.

Journal:

Physical Review B

Year:

1992

Language:

english

File:

PDF, 1.19 MB

english, 1992

93

Origin of thermal fixing in photorefractive lithium niobate crystals

Buse, K., Breer, S., Peithmann, K., Kapphan, S., Gao, M., Krätzig, E.

Journal:

Physical Review B

Year:

1997

Language:

english

File:

PDF, 585 KB

english, 1997

94

Dielectric-Related R-Zero-Phonon Emission Line Shift of Cr 3+ in SrTiO 3 :Ca

TREPAKOV, V. A., KAPPHAN, S. E., BEDNORZ, J. G., GREGORA, I., JASTRABIK, L.

Journal:

Year:

2004

Language:

english

File:

PDF, 424 KB

english, 2004

95

Higher vibrational states of OH/OD in the bulk of congruent LiNbO 3 and in proton/deuteron exchanged layers at the surface of LiNbO 3

Grone, A, Kapphan, S

Journal:

Journal of Physics Condensed Matter

Year:

1995

Language:

english

File:

PDF, 629 KB

english, 1995

96

Sharp R-lines in absorption and emission of Cr 3+ in stoichiometric (VTE) LiNbO 3

Fischer, C., Kapphan, S., Feng, Xi-Qi, Cheng, Ning

Journal:

Radiation Effects and Defects in Solids

Year:

1995

Language:

english

File:

PDF, 217 KB

english, 1995

97

A new phase in ferroelectric oxides: The phase of charge transfer vibronic excitons

Vikhnin, V. S, Eglitis, R. I, Kapphan, S. E, Kotomin, E. A, Borstel, G

Journal:

EPL (Europhysics Letters)

Year:

2001

Language:

english

File:

PDF, 159 KB

english, 2001

98

Luminescence in SrTiO 3 and LiNbO 3 Crystals Under High Density Pulsed Electron Excitation

GRIGORJEVA, L., MILLERS, D., TREPAKOV, V., KAPPHAN, S.

Journal:

Year:

2004

Language:

english

File:

PDF, 135 KB

english, 2004

99

Variations of the second harmonic intensity at the low temperature phase transition IN K 1-x Li x TaO 3 under electric field

Voigt, P., Kapphan, S.

Journal:

Year:

1991

Language:

english

File:

PDF, 347 KB

english, 1991

100

Photoluminescence Spectroscopy of Chromium Doped Cd 2 Nb 2 O 7

Bryknar, Z., Trepakov, V., Potucek, Z., Jastrabik, L., Kapphan, S.

Journal:

Year:

2002

Language:

english

File:

PDF, 253 KB

english, 2002